Bread-wrapping machine.



T. B DOOLEY & H. A. SEVIGNE.

Patented June 17, 1913.

V fix I 11;;

T. B. DOOLEY & H. A. sfivIGNfi.

BREAD WRAPPING MACHINE. APPLICATION FILED SEPT. 11, 190B.

Patented June 17, 1913.

6 SHEETB-SHEET 2.

. M j \v 3 Wk b5 5hr 77 o 7 9 w W i 7 6 W W 0 n w a ,7 /M Z 0 O W? fl 0 T. B. DOOLEY & H. A. svlemf. BREAD WRAPPING MACHINE. APPLICATION FILED SEPT. 11, 1908.

Patented June 17, 1913.

T. B. DOOLEY & H. A. sEvIGNE'. BREAD WRAPPING MACHINE. APPLICATION FILED SEPT. 11, 1908.

Patented June 17, 1913. /4

6 SHEETS SHEET 4.

T. B. DOOLEY & H. A. sBvIGN. BREAD WRAPPING MACHINE. APPLICATION FILED SEPT. 11, 1908.

1,064,964, Patented June 17, 1913.

6 SHEET8-HEET 5.

wwaee a' J7az/e7virs gm WWW @F O? Q? m MA @6.

T. B. DOOLEY & H. A. sBvIGNfi. BREAD WRAPPING MACHINE. APPLICATION FILED FPT.11.1908.

1,064,964, Patented June 17, 1913.

6 SHEETS-SHEET 6.

UNITED STATES PATENT OFFICE.

THOMAS B. DOOLEY AND HENRI A. SEVIGNE, OF BOSTON, MASSACHUSETTS; SAID DOOLEY ASSIGNOR TO: B. A. BALL, 015 BOSTON, MASSACHUSETTS.

BREAD-WRAPPING MACHINE.

Specification of Letters Patent.

Patented June 17, 1913,

Application filed September 11, 1908. Serial No. 452,651.

To all whom it may c0nccrn:

lle it. known that we, THOMAS E. Doonnr and llnnni A. SEVIGNE, both of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Bread-l/Vrapping Machines, of which the following is a specification.

This invention relates to an apparatus and method for wrapping articles and has special reference to wrapping loaves of bread.

The invention has for its object to facilitate and expedite the wrapping of articles and to so wrap and secure wrappers about articles that the several folds of the wrapper are retained in place as they are folded, and the entire folded wrapper is retained in place by the final folding of the wrapper whereby it may be finally secured at one point.

In carrying outthe invention, suitable folding devices are provided which are operated in timed relation to each other by means of suitable mechanism, said folding devices wrapping up the article by succes sive folds of the wrapper, which folds are held in place as the wrapping proceeds and the wrapper finally folded and secured at a single point.

In conjunction with the folding devices, there is provided a receptacle in which the articleis supported while the wrapper is being folded about it, said receptacle in con junction with the article, servingto form the first fold of the wrapper about the article." In conjunction with the folders and the rta-eptacle, there is provided a suitable device for applying an adhesive to the wrapper.

Referring to the accompanying drawings, Figure 1 is a side view in elevation illustrating an apparatus for carrying outthe invention. Fig. .3 is a plan view thereof. Fig. 3 is a detail side view in elevation of a portion of the apparatus adjacent to the receptacle, showing the article and wrapper placed in position in said receptacle. Fig. -'l is a detail side view in elevation showing the position of the folders in.tho second step of folding the wrapper about the article. Fig. 5 is a plan view of the article and wrapper in the position shown in Fig. 4. Fig. 6 is a detail side view in elevation showing the third step in which the wrapper is folded with overlapping folds at the ends of the article. Fig. 7 is a detail side view in elevation showing the fourth step 111 which the folded wrapper is folded over one side adjacent to the ends. Fig. 8 is a detail side view in elevation showing the fifth step in which one of the side vertical projections of the wrapper is folded over the top of the article. Fig. 9 is a detail side view in elevation showing the sixth or last step in which the final projecting vertical side of the wrapper is folded over on top of the article and the wrapper secured by means of an adhesive. Fig. 10 is a perspective view of a wrapper and an article to be wrapped placed thereon. Fig. 11 is a perspective view of the article and the wrapper folded against three sides thereof showing the first step of folding the wrapper. Figs. 12 to 17 inclusive are views in perspective of an article and wrapper, showing the several steps of folding the wrapper about the article, Fig 17 showing the Wrapper completely folded about an article.

In carrying out the invention, a folder is located at each end of the receptacle, said folders acting simultaneously to form a single fold of the wrapper against each end of the article, and double vertical folds projecting from each end of the article. At each end of the receptacle is located a pair of folders which act after the fold just described is made to fold in succession. each-of said double vertical folds in overlapping position against the end folds of the wrapper. The folds of the wrapper projecting above the ends of the article are then folded over the top of the article at its ends by a horizontally movable folder at each end of the receptacle at its top, said folders acting simultaneously. A folder movable across the top of the receptacle is then actuated to fold a remaining portion of the wrapper projecting above one side of the article down onto the top of the article. The end folders ha"- ing been withdrawn from the ends of the article, a folder on the opposite side of the rccc nacle advances as the folder movable across the top of the receptacle recedes to fold the remaining portion of the wrapper projecting above that side of the receptacle down onto the top of the article to overlap that portion of the'wrapper already folded down onto the top of the article.

Any suitable mechanism may be employed cam lever mechanism is conventionally employed to illustrate such movements.

The machine or apparatus is mounted on a suitable frame, as here shown, consisting of pairs of uprights 1, 2 and 3, projecting upward from suitable base plates t secured to any suitable foundation by means of bolts 5. A suitable receptacle for tlie ai'ticle to be wrapped is provided and is here shown as consisting 0 plates 6 and 6' forming two vertical sides of the receptacle and provided with suitable means for supporting an article between them while it is being wrapped. As here shown, a spring plate 7 is provided, mounted on the side plate 6 and extending from top to bottom and end to end of said plate. The spring plate 7 which is preferably of the bowed form shown, is secured by screws or any other suitable means at itsupper edge to the side plate 6, so as to present a yielding surface to an article inserted between it and the side plate 6. By means of the spring plate 7, articles of different shapes and sizes may be inserted between the spring plate 7 and the side plate 6 and held and supported inplace by said spring plate 7 and said side plate 6. The dotted lines a indicatean article, such as a loaf of bread, held in position between the spring plate 7 and the side plate 6.

Referring to Fig. 3, theunfolded wrapper b is shown in dotted lines in position to be pushed into the receptacle with the article to be wrapped and also in position to receive an adhesive substance as hereinafter set forth. Referring to Fig. 3, the article to be wrapped such as a loaf of bread, is pushed down against the wrapper 6 into the recep tacle; thereby folding the wrapper about three sides of the article with the remaining portions of the wrapper projecting above the article and beyond its ends. In this position the wrapper is first'folded at the ends of the article. To accomplish this, the folders 9 are provided, which, as here shown, are preferably in the form of broad blades arranged in pairs and each provided with an arm 15 pivoted at 16 to the upper portion of the upright 2, and adapted to swing in a vertical plane across the ends of the receptacle supporting the article. The folders 9 are operated by means of a lever arm 18 projecting from the pivotal point of the arm 15 and pivoted in turn atits outer end at 19 to a lever arm 20 provided at its rear end with an elbngated slot 22 which is adapted to: engage and reciprocate over the driving shaft 23 mounted at its ends.in suitable bearings 24 in the uprights 3, and having at one end .a driving wheel or pulley 2 3' which may be connected by a belt with any suita air of o) osite transverse able source of power. The lever 20 is connected with a cam wheel 27 by means of a pin 25 projecting into a cam groove 26 in the cam wheel 27 mounted on the shaft 23, the cam groove 26 being so shaped that in the rotation of the wheel 27, the folders 9 will be operated through the intervening lever mechanism in timed relation to the several folding steps during the successive operation of the other folders, hereinafter described.

The simultaneous elevating of the folders 9 over the ends of the receptacle when the article with a partly folded wrapper is located therein, serve to fold up a portion of the wrapper extending endwise from the article against the article to be wrapped as shown in 4. This folding of a portion of the wrapper acts also to form on either side of the ends of the folder 9 diagonal folds of the sides and ends of the wrapper, and to fold these diagonal short folds in overlapping position against the ends of the article partly wrapped, the folders 10 and 10 are employed. The folders 10 and 10 which are in pairs on opposite sides of the machine and consist preferably of flat'plates, are vertically mounted on arms 28 connected by sleeves 29 to vertical rotary shafts 3O 30' having their upper ends n iounted in bearings '31 projecting from the upper ends of the uprights 1 and 2 and mounted attheir lower ends in the base plates 4. The lower end of the shaft 30 is "provided with a collar 32 connccted by means of a lever 34 at its outer end by a pivot pin 36 with a sleeve 37 on the outer end of a lever arm,38 connected at its lower end to a vertically vibrating lever arm 39 pivoted or hinged at its upper end to the shaft 40 having its bearings in the uprights 3.

The vibrating lever 39 is provided with a pin 40 which engages the cam groove 41 in the cam wheel 42 mounted on the shaft 23.

The shape of the cam groove 41 is such that 4 the movement communicated to the folders 10, 10 through the levers connecting the cam wheel 42 with said folders, will be in timed relation to the movement of the folders 9. The folders 10, 10', which move simultaneously, are operated by means of the cam wheel 42 and the lever mechanism heretofore described connecting the cam wheel 42 with the shaft 30, and by means of a lever mechanism connecting the shafts 30 on opposite sides of the machine. This lever mechanism consists of a lover arm 35 projecting from the collar 32 and pivotally connected by a sleeve 44 with a lever arm 45 extending across the machine and pivotally connectedat its outer end by means of a lover arm 46 with the shaft 30 on the opposite side of the machine. The collar 32 at the lower end of the shaft 30 is provided with a lever arm 17 which is pivotally connected at its outer end at 48 witha lever arm 49 extending across the machine and pivotally connected at its outer end at 50 with a short.lever arm 51 which is mounted at its opposite end on the shaft 30 on the opposite side of the machine. Projecting from the said shaft 30' is a short lever 52 which is pivotally connected at its outer end at 58 to a lever 54 extending lengthwise of the machine and hinged at its outer end to the lower end of a vertically vibrating lever 54 hinged at its upper end to the shaft '40. The vibrating lever 54 is provided with a pin 55 which engages a cam groove in the cam wheel 56. The shape of the cam groove in wheel 56 is such that the movement communicated to the folders 10, 10 through the levers connecting the cam wheel 56 with the folders 1t), 10 will be in timed relation to the movement of the folders 10, 10, and will cause the folders 10, 10 to be simultaneously operated successively to the movements of the folders 10, 10. It will be seen that by means of these connections, the two pairs of vertical folders 10 and 10 will be swung toward the ends of the article supported in the receptacle to successively fold the folded projecting flaps shown in Fig. 5, against the. ends of the article in the position shown in Fig. 4. During this folding of the projecting end folds, the folders 9 withdraw leaving the folds held by the folders 10 and i 10. During the further folding of the article, the folders 10 and 10 are withdrawn from the ends of the article while the folders 11 and 11 operate to fold the vertically projecting end flaps .over the top of the article as shown in Fig. 7. The folders 11 of which there is one on each side of the machine as shown in Fig. 2, are each mounted on an arm 57 mounted on a vertical rotary shaft 58 having a bearing in a collar 59 supported on a shelf 7 of the upright 1, and also ha viug its hearings in brackets 0 projeeting' from the upright. The folders 11, which are so located as to swing horizontally over the top of the ends of the article supported in the receptacle. consist preferably of broad flat blades. The folders or blades 11 are simultaneously operated by means of a lever arm (11 projecting from the shaft 58 and pivotally connected at its outer end at 2 to a lever arm (33 extending across the machine, and pivot-ally connected at its outer end at (34 to a lever arm (15 projecting from the rotary shaft 58 at the opposite side of the machine.

Projecting from the shaft 58 is a lever arm (it; pivoted at its outer end at (37 to a lever 8 extending longitudinally of the machine and connected at its outer end to the lower end of a vibrating or swinging lever arm ()9 hinged or pivoted at its upper end to the shaft 40', and having a pivot pin engaging a cam groove in the cam wheel 71 mounted on the shaft 23. The groove in the cam wheel 71 is of such a shape as to transmit from the wheel 71 through said lever mechanism described, to the folders 11 a timed movement to said folders 11 in relation to the movements of the other folders. The folders 11, being swung in simultaneously by said mechanism above the article to be wrapped, fold the upwardly projecting folding portions of the wrappeinat the ends of the article down upon the article as shown in Fig. 7.

In the next step of folding the wrapper, the folder 12 is employed which may be either a solid blade or a blade formed with teeth 13 as here shown to make it elastic, the said folder 12 being mounted on a transverse bar 72 mounted at its ends on arms 73, 73 hinged at their lower ends at T4 to brackets 75 projecting from the uprights 1. The folder 1? is operated by means of a lever 77 pivoted at 76 to the arm '73, said lever 77 extending lengthwise of the machine and being provided at its rear end with an elongated slot 78 which engages aml is adapted to slide on the shaft 23, the lever T7 having a pin 79 projecting into a groove 80 in the cam wheel 81 mounted on the shaft The shape of the canrgroove S0 is such that in the n'iovement of the wheel S1, a timed movement will be conveyed through the lever mechanism to the folder 12 to operate it at a suitable time after the ends of the wrapper are folded against the article.

In Fig. 8 the folder 12 is shown as having folded down one of the side portions of the wrapper projecting above the article. As the folder 1) is drawn back over the top of the article. the folder ll preferably in the shape of a roller. is moved over the top of the article, following the folder li and folds down the remaining upwardly projecting portion of the wrapper to mrrlaptbe other top fold of the wrapper. The ends of the roller H are provided with axial projections 82 wh ch are supported in suitable sleeves or trunnions ts'il on the ends of arms St mounted in sockets S5 in arms St) pivotally secured at one end to a shaft 87 nu.unted in brackets H8 on the uprights L'.

the lower end of said arms St being pivotally connected at St) to lever arms tlt) provided at their outer ends with an elongated slct 9t engaging and adapted to slide on the shaft 23 and having a pin it engaging a cam slot in the cam wheel 27. The shape of the cam in the cam wheel 27 is such as to time the nu.vemeut of the roller it and its lever mechanism in relation to the movement of the folder 1;.

In order that the roller H may have a yielding bmu'ing on articles of irregular surfaces. the arms 54- ea h have a projeo i lien 92 connected with each arm fit by means of a rod J23 pivoted at one end at M to the &

end of the projection 92 and adapted to slide in a sleeve 9.) mounted in the arm 86. coil spring 96 mounted on the rod 9 and located between its outer end and the sleeve 0.), serves to provide a cushioning etfect for the roller ll in its n'iovements in folding the wrapper. upright l is mounted a suitable receptacle t for ccntaining' a suitable adhesive. l mcated in said r .-ceptacle is a transverse grooved bar 97 ha\ ing its ends mounted in guides 95 \vherelrv he bar 97 may be raised and lowered, said bar 97 being connected by levers W.) in said receptacle with a shaft ltltl projecting at one end througln said receptacle anthhaving mounted on its projecting end a lever 10L pivot-ally ccnnected at its outer end to the upper end of a vertically movable rod 102 which is pivotally connected at its lower end with the arm 10;} of a bell crank lever mounted on the upright 1, the other arm 10% of said bell crank lever being pivoted to one. end of the lever arm 10?, the other end .of said arm being pivoted at 106 to the lever 73. This lever connection of the vertically movable bar J7 and the vibrating lever 7 is such that, in the timed movements of the. vibrating lover T3, the bar 97 is lowered to have a fresh supply of adhesive actannulated thereon. and is raised to bear against and apply the adhesive to the wrapper before it is pushed into the receptacle with the article to be wrapped.

If desired, a suitable device may be provided which extends beneath the receptacle to sustain tlmarticleto be wrapped. Said device may be a tilting shelf projecting beneath the receptacle and hinged to the up rights at one side thereof, and connected by suitable cam lever mechanism with the shaft 22) whereby when the article has been wrapped, the shelf will be tilted and the wrapped article be delivered to a suitable point.

In the final folding of the wrapper by means of the roller it, the fold of the wrappcr with the adhesive, which has been applied to the edge of the wrapper, is located beneath the tinal fold of the wrapper, and as the roller ll ismovcd over the final fold of the wrapper. it serves to fasten the tinal fold of the wrapper by means of the ad hesive.

The method of wrappingarticles by means of this invention is as follow.- .\n article. such as a leaf of bread o is placed upon a wrapper I). as shown in Fig. 10, the loaliof bread being preferably in inverted pesitn n as the. tops t loa\es of bread are generally o]; irregular shape. while the bottom is practically snnoth which permits of the tinalf folds cf the wrapper being sm: thly and ccmpactly made.- ln the next step of-foltting. the wrapper I: is folded lengthwise in a U-shape fold about three sides of the loaf ooe9s4 a, the wrapper projecting beyond the ends of the article and above its top as shown in Fig. 11. In this position, end portions of the wrapper are first folded in against the ends of the leaf a which act of folding forms folded tapering pro ecting portions ()n 1 7 (m f h I] (1 extending beyond the ends of the article as shown m Fig. 12. One of said folded tapering projecting portions d is then folded at each end of the leaf a against the folded end portions 0 of the wrapper at the ends of the leaf as shown in Fig? 13. The other tapering folded end portions d at the ends of the leaf 0 are then folded in overlapping position over said tapering folded end portions J as shown in Fig. 14. In this position, the wrapper pro ects in folded position above the ends of the leaf and the overlapping folded portions are retained in placeat the ends of the loaf. The upwardly projecting folded or overlapping portions 6 at the ends of the article are then folded down overthe top of the leaf at opposite ends as shown in Fig. One 'of the side remaining portions f of the wrapper projecting above the article is then folded over said end top folded portions 6 as shown in Fig. 16, and the other remaining projecting portion j at the side of the article is then folded down upon the folded portions of the wrapper on the top of the article as shown iii Fig. 17, and secured in place many suitable manner.

As shown in Figs. 10 and 11, the Wrapper Z) is rectangular. The operation of folding results in all of the corners of the wrapper being turned in underneath so as to be held by other overlying folds. The use of wrappers which are rectangular inform is not only more economical than when specially shaped wrappers are employed, but the successive; operation of the folders is such to cause all end folds to be so tucked inside other portions of the wrapper that said end folds will be held by the final sealed flap.

Loaves of b'read, even when from one baking, widely differ from each other in size and shape, this being due to the unequal rising of the leaves above the top of the pan and to the fact that side and end portions frequently overhang the top edges of the pan. The bottoms of the loaves are the only reliably uniform surfaces. Hence 'it is necessary, for the best results, to so assemble the loaf and the wrapper that the portion which is the top of the leaf will be in contact with the middle portion of the wrapper, as shown in l igs. 1t) and ll. 'After the fold shown in Fig. 11 has been produced, the successively operating folders next bend the end portions 0 of the wrapper against the ends of the leaf, as shown in Fig. 12, while still leaving the side edges of the wrapper unfolded and projecting beyond the plane of that portion of the loaf which is known as the bottom because it was shaped by the bottom of the pan. The next opera tion is to turn doubled portions of the wrapper d, d toward each other and overlap them against the ends of the loaf, as shown in Figs. 13 and 14. The next operating folders cause the end portions 6 and the side edges f, f to be overlapped upon each other and against the bottom of the loaf, the final flap f extending in the same direction as the end flaps d. The flaps or folded portions a, d will snugly bear against the ends of the loaf even when the latter are quite irregular, and owing to portions of said flaps d, d, as shown in Fig. 15, being turned in against the bottom of the loaf so that they will be held by the sealing of the final flap f, said end portions or folds are securely held without requiring separate treatment by an adhesive.

We claim:

1. A machine for wrapping articles, comprising a receptacle having two confronting sides but otherwise open, a folder at each end thereof movable in a vertical plane so as to cover the end of the receptacle, pairs of folders at each end of the receptacle movable against the ends of the receptacle, a folder at each end of the receptacle at its top movable in a horizontal plane over the top of the receptacle at its ends, a folder movable above the top of the receptacle from one side, and a folder movable above the top of the receptacle fnom the other side.

2. A machine for wrapping articles, comprising a receptacle having confronting side walls but open at its bottom and ends, swinging folders, one at each end of the receptacle, said folders being arranged to swing edgewise in vertical planes so as to fold portions of the wrapper into the ends of the receptacle, pairs of swinging folders at the ends of the receptacle, each pair movable successively horizontally to fold portions of the wrapper into the ends of the receptacle after the movement of the vertically movable folders, a swinging folder at each end of the receptacle movable simultaneously over the top of the receptacle adjacent to its ends after the movement of the horizontally movable end folders, folders successively movable over the top of the receptacle to finally fold the wrapper, and mechanism which successively operates said several folders in timed relation to each other.

3. A bread wrapping machine having means for folding a rectangular wrapper across the top of the loaf and against the two sides thereof, and a series of successively operating folders for bending end portions of the wrapper against the ends of the loaf, leaving the side edges of the wrapper unfolded, then turning doubled portions of the wrapper toward each other and overlapping them against the ends of the loaf, and then overlapping the side edges of the wrapper and the edges of the previously folded end portions upon each other against the bottom of the loaf.

4. A bread wrapping machine having means for folding a-rectangular wrapper across the top of the loaf and against the two sides thereof, and a series of successively operating folders for bending end portions of the wrapper against the ends of the loaf, leaving the side edges of the wrapper un-folded, then turning doubled portions of the wrapper toward each other and overlapping them against the ends of the loaf,.then tucking the last mentioned portions toward each other across the bottom of the loaf, and then successively folding the side edges of 'the wrapper and overlapping them against the bottom of the loaf and upon the previously in-turned end folds.

5. A bread wrapping machine having means for folding a rectangular wrapper across the top of the loaf and against the two. sides thereof, and a series of successively operating folders for bending end portions of the wrapper against the ends of the loaf, leaving the side edges of the wrapper un-folded, then turning doubled portions of the wrapper toward each other and overlapping them against the ends of the loaf, then tucking the last mentioned portions toward each other across the bottom of the loaf, and then successively folding the side edges of the wrapper and overlapping them against the bottom of the loaf and upon the previously in-turned end folds, meansbeing provided for applying an adhesive-to that portion of the wrapper which constitutes the final fold.

In testimony whereof we have aflixed our signatures, 1n presence of two witnesses.

THOMAS B. DOOLEY. HENRI A. SEVIGNE.

Witnesses:

EDWARD W. CADY, PETER W. PEZZE'I'II. 

